Open Access
Spectropolarimetric investigations of the magnetization of the quiet Sun chromosphere
J. Trujillo Bueno
- Vol. 81, pp 681
TLDR
In this paper, a review of the development and application of polarized radiation diagnostics to infer the mean magnetization of the solar atmosphere, from the near equilibrium photosphere to the highly non-equilibrium upper chromosphere, is presented.Abstract:
This paper reviews some recent advances in the development and application of polarized radiation diagnostics to infer the mean magnetization of the quiet solar atmosphere, from the near equilibrium photosphere to the highly non-equilibrium upper chromosphere. In particular, I show that interpretations of the scattering polarization observed in some spectral lines suggest that while the magnetization of the photosphere and upper chromosphere is very significant, the lower chromosphere seems to be weakly magnetized.read more
Citations
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Journal ArticleDOI
Solar Fine-Scale Structures. I. Spicules and Other Small-Scale, Jet-Like Events at the Chromospheric Level: Observations and Physical Parameters
Georgia Tsiropoula,Kostas Tziotziou,Ioannis Kontogiannis,Maria S. Madjarska,J. G. Doyle,Y. Suematsu +5 more
TL;DR: In this paper, the authors present observations and physical properties of small-scale jet-like chromospheric events observed in active and quiet regions, on the disk and at the limb and discuss their interrelationship.
Journal ArticleDOI
Solar Particle Acceleration Radiation and Kinetics (SPARK)
Sarah A. Matthews,David R. Williams,Karl-Ludwig Klein,Eduard P. Kontar,David M. Smith,Andreas Lagg,Säm Krucker,G. J. Hurford,Nicole Vilmer,Alexander L. MacKinnon,Valentina Zharkova,Lyndsay Fletcher,Iain G. Hannah,Philippa Browning,Davina Innes,Gerard Trottet,Clare Foullon,Valery M. Nakariakov,Lucie M. Green,Herve Lamoureux,Colin Forsyth,David M. Walton,Mihalis Mathioudakis,Achim Gandorfer,V. Martinez-Pillet,Olivier Limousin,Erwin Verwichte,Silvia Dalla,Gottfried Mann,Henri Aurass,Thomas Neukirch +30 more
TL;DR: The SPARK concept as mentioned in this paper targets the broad range of energy, spatial and temporal scales over which particle acceleration occurs in the solar atmosphere, in order to determine how and where energetic particles are accelerated.
Modeling Scattering Polarization for Probing Solar Magnetism
TL;DR: In this paper, the authors consider the problem of modeling the light polarization that emerges from an astrophysical plasma composed of atoms whose excitation state is significantly influenced by the anisotropy of the incident field.
Detection of chromospheric magnetic fields: a forward modeling approach .
TL;DR: In this paper, it was shown that the vertical magnetic field on the axis of the concentration can be recovered by measuring the bisector separation of the left and right-hand circularly polarized emergent spectrum lines.
Posted Content
Scattering polarization and the Hanle effect in H-alpha as a probe of chromospheric magnetism: Modeling vs. Observations
TL;DR: In this article, the amplitude and shape of the scattering polarization profiles of the H-alpha line is very sensitive to the strength and structure of the chromospheric magnetic field, and the interpretation of the observations in terms of one-dimensional radiative transfer modeling suggests that there is an abrupt magnetization in the upper chromosphere of the quiet Sun.
References
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Book
Solar Magnetic Fields: Polarized Radiation Diagnostics
Jan Olof Stenflo,Douglas Rabin +1 more
TL;DR: In this article, the authors introduce the Quantum Field Theory of Polarized Radiative Transfer (QRFT) and the Hanle Effect, and propose a multi-level radiative transfer with coherence effects.
BookDOI
Magnetic Coupling between the Interior and Atmosphere of the Sun
S. S. Hasan,Robert J. Rutten +1 more
TL;DR: In this article, Bappu et al. presented a detailed overview of the evolution of the Sunspots in the last 100 years, including the development of the Penumbral Magnetic Fields (PFG) and the emergence of the Evershed Flow and the Brightness of Penumbra.
Introduction to Spectropolarimetry
del Toro Iniesta,Jose Carlos +1 more
TL;DR: A review of basic concepts of quasi-monochromatic light can be found in this paper, where linear optical systems acting on polarized light are described and the radiative transfer equation is solved.
Book
Introduction to Spectropolarimetry
TL;DR: A review of basic concepts of quasi-monochromatic light can be found in this paper, where linear optical systems acting on polarized light are described and the radiative transfer equation is solved.
Book
Conversations on Electric and Magnetic Fields in the Cosmos
TL;DR: Parker as mentioned in this paper provides advanced graduate students and researchers with a much-needed complement to existing texts, one that discusses the dynamic electromagnetism of the cosmos, that is, the vast magnetic fields that are carried bodily in the swirling ionized gases of stars and galaxies and throughout intergalactic space.